Improvement in the manufacture of sheet iron



EDWARD B. NOGK, 0E CLEVELAND, 01110, ASSIGNOR 'rof i PERDUE, CHARLES F. MATHEWS, AND JOHN LONG, 0E SAME PLACE.

Letters Patent No. 81,528, dated August 25, 1868.

IMPROVEMENT IN THE MANUFACTURE OF SHEET IRON.

T.O.ALL WHOM IT MAY CONCERN:

Be it known thalt I, EDWARD B. NOGK, of Cleveland, ehunty C uyahoga, in the State of Ohio, have invented a. new and improved Method of Manufacturing Sheet Iron; arid I do hereby declare that the following is a. full and exact description thereof.

' The nature of this method relates to the manufacture of an improved articie of sheet iron, and consists in applying tiu to the surface of the iron, which may be done at any time after leaving the puddling-furnaqe, had

"previous to being finished into sheets. This iron produces, when finished, a smooth, polished surface, and is eapnble of resisting oxidation far better than ordinary sheet iron, and is much more durable.

For producing the result herestated, either of the following methods may be employed with similar results: First. Immerse the iron while hot, as it comes from the heating-furnace, into molten tin, previous to passing to the rollers. It may then be finished into sheets the same as ordinary sheet iron.

'Secon'd. Coat the iron with tin previous to heating for the rollers. I Third. Apply tin to the surface of sheets during the process of manufacture. Fourth. Immerse the paddled ball, as it comes from the paddling-furnace, into .mo'lten tin, previous to :passing through the squeezers.

Fifth. Immerse the bloom into niolten tin, after coming from the squeezers, previous to passing through the muck-rolls.

Sixth. Immerse the muck-bar into molten tin previous to heating.

The surface produced by the superficial application of tin to the iron, during the process of manufacture, gives it the superior qualities of resisting the corroding influences of acids and gases; and for durability it excels all ordinary sheet iron.

I claim the application of tin to the surface of the iron, by either of the methods herein described, sub} stantially as and for the purpose set forth. I

EDWARD B. NOCK.

Witnesses:

GEO. W. Trserr'rs,

' GEo. HESTER. 

